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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include "ioline.h"
#include "cli.h"
#include "module.h"
#include "sink.h"
#include "source.h"
#include "client.h"
#include "sink-input.h"
#include "source-output.h"
#include "tokenizer.h"
#include "strbuf.h"
#include "namereg.h"
#include "cli-text.h"
#include "cli-command.h"
#include "xmalloc.h"
#include "log.h"
#define PROMPT ">>> "
#define PA_TYPEID_CLI PA_TYPEID_MAKE('C', 'L', 'I', '_')
struct pa_cli {
struct pa_core *core;
struct pa_ioline *line;
void (*eof_callback)(struct pa_cli *c, void *userdata);
void *userdata;
struct pa_client *client;
int fail, kill_requested, defer_kill;
};
static void line_callback(struct pa_ioline *line, const char *s, void *userdata);
static void client_kill(struct pa_client *c);
struct pa_cli* pa_cli_new(struct pa_core *core, struct pa_iochannel *io, struct pa_module *m) {
char cname[256];
struct pa_cli *c;
assert(io);
c = pa_xmalloc(sizeof(struct pa_cli));
c->core = core;
c->line = pa_ioline_new(io);
assert(c->line);
c->userdata = NULL;
c->eof_callback = NULL;
pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
c->client = pa_client_new(core, PA_TYPEID_CLI, cname);
assert(c->client);
c->client->kill = client_kill;
c->client->userdata = c;
c->client->owner = m;
pa_ioline_set_callback(c->line, line_callback, c);
pa_ioline_puts(c->line, "Welcome to polypaudio! Use \"help\" for usage information.\n"PROMPT);
c->fail = c->kill_requested = c->defer_kill = 0;
return c;
}
void pa_cli_free(struct pa_cli *c) {
assert(c);
pa_ioline_close(c->line);
pa_ioline_unref(c->line);
pa_client_free(c->client);
pa_xfree(c);
}
static void client_kill(struct pa_client *client) {
struct pa_cli *c;
assert(client && client->userdata);
c = client->userdata;
pa_log_debug(__FILE__": CLI client killed.\n");
if (c->defer_kill)
c->kill_requested = 1;
else {
if (c->eof_callback)
c->eof_callback(c, c->userdata);
}
}
static void line_callback(struct pa_ioline *line, const char *s, void *userdata) {
struct pa_strbuf *buf;
struct pa_cli *c = userdata;
char *p;
assert(line && c);
if (!s) {
pa_log_debug(__FILE__": CLI got EOF from user.\n");
if (c->eof_callback)
c->eof_callback(c, c->userdata);
return;
}
buf = pa_strbuf_new();
assert(buf);
c->defer_kill++;
pa_cli_command_execute_line(c->core, s, buf, &c->fail);
c->defer_kill--;
pa_ioline_puts(line, p = pa_strbuf_tostring_free(buf));
pa_xfree(p);
if (c->kill_requested) {
if (c->eof_callback)
c->eof_callback(c, c->userdata);
} else
pa_ioline_puts(line, PROMPT);
}
void pa_cli_set_eof_callback(struct pa_cli *c, void (*cb)(struct pa_cli*c, void *userdata), void *userdata) {
assert(c);
c->eof_callback = cb;
c->userdata = userdata;
}
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